L'Oréal Professionnel Diactivateur 9 Vol Developer – Standard Toner Activator

Activator 9 Vol is the mid-range developer in the Diactivateur system, formulated for controlled deposit with a light cuticle opening that allows for balanced toning across a variety of hair types and service needs. Positioned between the pure deposit of 6 Vol and the stronger action of 15 Vol, it provides professional colorists with maximum versatility for toning, color refreshing, and demi-permanent application.

Professional Benefits

• 9-volume formula for balanced deposit and controlled light lift
  
• Versatile across a wide range of hair types, from fine to coarse
  
• Ideal for toning highlighted hair or refreshing faded demi-permanent color
  
• Works with both Dia Light and Dia Color for flexible service application
  
• Provides more deposit intensity than 6 Vol for clients with slightly resistant hair
  
• Professional-grade formulation for consistent, reproducible results

How to Use

1. Measure the appropriate amount of Diactivateur 9 Vol developer
   
2. Mix with Dia Light or Dia Color at a 1:1.5 ratio (color to developer)
   
3. Apply to clean, towel-dried hair using a brush or applicator bottle
   
4. Process 20 to 25 minutes at room temperature
   
5. Rinse thoroughly, shampoo lightly, and complete with a conditioning treatment

Pro tip: 9 Vol is the ideal everyday developer for highlighted or partially lightened hair. It hits the balance between shine and deposit, making it the go-to choice when you're unsure whether 6 Vol will deliver enough intensity.